Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Detonator startup hydraulic setting tool and application thereof

A technology of hydraulic setting and detonator, which is applied in the fields of production fluid, wellbore/well components, earth-moving drilling, etc. It can solve the problems of inconvenient setting, high cost, customized processing of gunpowder column, etc., so as to facilitate on-site flexible organization The effect of convenient construction, storage and transportation, and low processing cost

Pending Publication Date: 2018-06-08
PETROCHINA CO LTD
View PDF5 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the problems that the gunpowder column in the existing gunpowder setting tool needs to be customized and processed, the approval of gunpowder transportation is complicated, the cost is high, the residue after gunpowder combustion is too much to clean and the setting is inconvenient

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Detonator startup hydraulic setting tool and application thereof
  • Detonator startup hydraulic setting tool and application thereof
  • Detonator startup hydraulic setting tool and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] This embodiment provides a detonator activated hydraulic setting tool, which includes an electronic control mechanism, a detonator activation mechanism, a hydraulic transmission mechanism and a power actuator connected in sequence from top to bottom.

[0035] The electronic control mechanism receives the starting signal from the ground, and the detonator starting mechanism detonates the detonator according to the starting signal, cuts the starting shear nail, pushes the piston to a predetermined position, and connects the hydraulic transmission channel. The hydraulic transmission mechanism is used to transmit the hydraulic pressure in the wellbore to the sheath In the gap with the center tube, due to the different force-bearing areas at both ends of the sheath, an upward driving force is generated to make the sheath and the connecting rod move relative to each other. The power actuator is used to connect the central part and the outer part of tools such as bridge plugs re...

Embodiment 2

[0038] On the basis of Example 1, such as figure 1 or Figure 4As shown, the electronic control mechanism includes a cable protection tube 1 and a joint 6 connected up and down, and the axial cavity formed by the cable protection tube 1 and the joint 6 is provided with a cable 2 and an electronic control circuit that are electrically connected in sequence from top to bottom. 4. Signal line 5. The electronic control circuit 4 is used to receive the starting electric signal from the ground, and the starting electric signal is decoded by the electronic control circuit 4 to generate a starting signal of a specific frequency, which is transmitted to the detonator starting mechanism through the signal line 5 .

Embodiment 3

[0040] On the basis of Example 1, such as figure 1 or Figure 4 As shown, the detonator starting mechanism includes a connecting joint 9 and a piston cylinder 16 connected up and down, the connecting joint 9 is connected with the cable protection tube 1 and the joint 6, and the igniter 7 and the nonel are installed in the connecting joint 9 sequentially from top to bottom. 8. The detonator 10, the igniter 7 are electrically connected with the signal line 5, and the protective cover 11 is installed outside the detonator 10; the piston 14 is installed in the piston cylinder 16, and the piston 14 is fixed on the pressure ring 13 through the starting pin 12, and the pressure ring 13 is installed on the inner wall of the piston cylinder 16 at the joint between the piston cylinder 16 and the connecting joint 9, the inside of the piston 14 is hollow, and the inner liquid inlet hole 15 is opened on the wall, and the outer liquid inlet hole 17 is opened on the wall of the piston cylind...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a detonator startup hydraulic setting tool and application thereof. The setting tool comprises an electronic control mechanism, a detonator startup mechanism, a hydraulic transfer mechanism and a power execution mechanism which are sequentially connected from top to bottom. The detonator startup mechanism detonates a detonator according to a startup signal transmitted by theelectronic control mechanism, shears off a startup shear pin, pushes a piston to reach a preset position and communicates a hydraulic transfer passage; the hydraulic transfer mechanism is used for transferring a hydraulic pressure in a shaft into a gap between a sheath and a center pipe, so as to enable the sheath and a connection rod to generate relative motion; the power execution mechanism transfers a pulling force generated by the hydraulic pressure to a bridge plug or a ball seat, so as to enable the bridge plug or the ball seat to release and complete setting. The detonator is selectedto replace conventional gunpowder because the detonator is a standard part, provides stable explosive power, is small in size, is a common part in fire work, is more convenient to store and transportthan powder grains and is convenient for flexibly organizing construction in the scene, and meanwhile, the setting tool using the detonator is easy to clean and recycle, so that cost can be reduced.

Description

technical field [0001] The invention belongs to the technical field of downhole control tools in the petroleum industry, and in particular relates to a detonator-activated hydraulic setting tool and its application. Background technique [0002] With the continuous development of the world's oil resources, there are fewer and fewer oil fields with good reservoir properties and high grades, and low-permeability tight oil and gas reservoirs have become the main body of oil and gas production. For tight oil and gas reservoirs, the most effective method is the volume stimulation technology with large displacement, large liquid volume and large sand volume, which can maximize the transformation of oil and gas reservoirs. Generally, plugging in the casing is achieved by putting in tools such as bridge plugs or ball seats. , has the characteristics of unlimited stages of fracturing, simple process, and good wellbore integrity after fracturing, and is being used by more and more oil...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): E21B23/06E21B23/10E21B43/116E21B43/26
CPCE21B23/065E21B23/10E21B43/116E21B43/261Y02A30/30
Inventor 郭思文桂捷王治国任国富马兵赵粉霞张文星蒙鑫赵敏琦李楷冯长青杜现飞
Owner PETROCHINA CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com